Spacer.



E. A. HALBLEIB, SPACER.

. APPLICATION FILED APR. 10, 1916.

Patented Jan. 7, 1919.

UNITED strnrns PATENT onrron. I

- l I I .E v I EDWARD A. HALBLEIB, ROCHESTER, NEW YORK, ASSIGNOR TO"NLQRTE EAST ELEC- r310 COMPANY, or ROCHESTER, .NEW YORK, A conronn'rron or new YORK.

te mw- To all whom may concern:

Be it known that I, EnwARoA; HALnLnrn,

Rochester, in the county of Monroe and State of New York, have invented, certain 'new and useful Improvements in Spacers;

and I do hereby declare the following to be a full, clear, and eXact-descriptionof the .inve'ntion, such'as will enable others skilled in the ant to which and use thesame.

y This invention relates to a spacer for use in separating and spacing annular members such, for example, asball-bearing races. or

oil-paokings used in connection with rotary shafts. v

The object of the invention is to produce a spacer, adapted to be used as a substitute for the Washers or sleeves commonly used it appertains to make for the purposes aforesaid, which shall be light andinexpensive, but at the same time sufiiciently rigid) against transverse pressure, and which, while made of thin sheetmetal, shall still present lateral surfaces of a sufficient extent for firm and accurate en-.

gagementwith the part or parts retained-or spaced by the spacer. I, 1

To the foregoing ends the invention com prises a spacer formed of a strip of sheetmetal or other sufficiently rigid, and preferably resilient material, this strip being corrugated transversely and being bent, when in use, into a generally-circular form retain the packing-ring in position.

with its ends adj acent.

When the spacer 1s introduced within a sleeve or chamber, in which 1 a shaft is mounted, the spacer assumes a circular form surrounding the shaft, and its lateral edges engage the part or parts to be sep arated. The corrugation of the strip not only stifi'ens it against the transverse presv sure to which it may be subjectedbyengagement with these parts, but it also gives the operative edges of the'spacer a wavy form such as'to cause them to engage the separated-parts over a substantial radial space. By making the form other thanthecircu ar form inwhich it is held when in-use'," and by theuse of resilient material in the spacer, it .mayalso bemused,- when iniuse, to -sp ringeither in: wardly or outwardly, as maybe convenient,

against the surface of one of the co-action members between 'which 1s" introduced, so

Specification of Letters -Iatent. 7 Application filed April 10, 1916. Serial 1W0. 90,133. I

acer of a normal Patented Jan."7,191 9.

that' the spacer. retains itself securely in position without rattling. or displacement.

In the accompanying drawings Figure 1 is a perspective V-IGW of a spacer constructed in accordance with-the present invention; Fig. 2 is; an axial section .of a part of an electric motor showing the spacer-of Fig. 1 as used in connection with theloall-bearing and the oil-packing of the armat ure-shaft of the and E 3. iS-.'a .Ve1tical section on the line 3'3'of Fig. 2.

a strip of resilient sheet-metal which is corrug-ated from end to end .and is also curved longitudinally, but not sufiiciently to form a complete circle. In Figs. 2 and 3, this spacer is shown in use inconnection with armature-shaft 6, which is mounted in a ball-bearing comprising inner and outer ball-races 7 and 8' respectively. The shaft .passesthrough a sleeve 9 projecting from the end-piece 10 of the frame or casing of the motor, and this sleeve incloses the ballbearing'an'd supports the outer race 8,-Whichis slipped loosely into the sleeve against a flange 12' at the. outer end; thereof. The

an electric motor. This motor has the usual sleeve also incloses and supports an .oil-" shown 'in Fig. 2, one lateral edge of the spacer engages directly the lateral surface of the ball-race 8, while the other lateral .edgeof -the-spacer engages a thin metal washer 13,.wvhich,in turn, is in contact with the packingrring 11. The parts are all held in position by a disk 14, which engages the inner surface vof the. packing-ring and is .fixed to the head 10 by screws 15.

Theabove described arrangement is such that the packing-ring may, if desired, be compressed between the disk 14 and the washer 13, since the washer isfirmly supportedagainst such pressure by the spacer, and this, in turn, by its engagement with the ball-race, 8. :Although the .spaceris made of thin and light sheet-material, it will effectually resist a considerable transverse pressure, owing to the stiffness inr parted to it by corrugation. This corruga-' v I 65 p 1 As shown in Fig. 1, the spacer-consists of tion has, however, other and more im ortant functions. In the first place, it a ords a radial extent of engagement between the spacer and the ball-race 8 which is of value,

particularly by reason of the fact that it permits thesleeve to be counterbor'ed and the space in which it is to be used, but the spacers may be made-and kept on hand as generally straight, or only slightly purved,

v corrugated stripsof the proper length, and

' 2.0 may be easily bent into circular form by one of'these' strips, when required for use,

hand and slipped into the sleeve 9; ;When the spacer is used as last described,

if. it be made of' resilient material it will constantly spring outwardly against themner surface-0f the sleeve, so as .to retain itself in the proper operative position and so as also to prevent any vrattling within the sleeve. that, if the spacer, before its introduction made of sheet-material of given thickness. Accordingly,

; It will' be apparent, however,

in the sleeve, be given a much more pronounced curve, 1t Wlll tend to spring mwardly against the surface of the shaft when in use, and this may, in some'cases, though not in the illustrated motor, able arrangement.

I claim:

be the prefer- 1. In combination with a sleeve, a shaft co-axial with the sleeve, andannular members surrounding the shaft and inclosed \vithinthe sleeve, a spacer for the annular members comprising a strip of sheet-metal corrugated transversely and surrounding the shaft between the annular members, and in engagement with with its lateral edges said members. 2. In'combination with a sleeve,a shaft co-axial with the sleeve, and annular members surrounding the shaft and inclosed withi'n'the sleeve, a spacer'for the'annular' members comprising a strip of sheet-metal corrugated transversely and surrounding the shaft between the annular members and with its lateral edges in engagement with 'said members, the spacer being, of resilient material and of a normal form such that when confined in the sleeve it springs outwardly into close I contact with EDWARD A. HALBLEIH the sleeve. 

